Enhancement of Secrecy Throughput Performance in a Cooperative Network with Interference-assisted Energy Harvesting

摘要

A novel approach comprising of "Destination-based Jamming" (DJ) technique with "Interference-assisted Energy harvesting" (EH) in a "Cooperative Network" (CN) has been discussed in this paper. Here we have studied the "Secrecy Throughput" (STP) performance of the "Decode-and-Forward Relay" (DFR) network that uses Hybrid protocol to harvest energy both from Source signal and Interferer to use it for relaying operation. The beneficial effects of interference power on the secrecy performance of DF relaying are investigated. The impact of some system parameters, such as the power splitting ratio, energy harvesting coefficient, target secrecy rate and interferer-eavesdropper distance have been studied on the system secrecy throughput. Simulation results reveal that the EH scheme proposed in this paper can achieve higher secrecy capacity than traditional relaying strategies. The main objective is to find out how much STP can be achieved by harvesting energy from an interferer (I) in the presence of an eavesdropper (EAV). The results of this paper illustrate how the interference power and jamming affect the secrecy throughput in cooperative system. In addition, these results serve as guideline on the maximum amount of interferer power that can be harvested so as to maximize the STP.